Question:

How did they hold back the colorado river to build the Hoover Dam?

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How did they hold back the colorado river to build the Hoover Dam?

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  1. they used diversion tunnels, which are still there.

    The river bypassed the dam area while it was being built.


  2. My ol pal Superman

  3. They used dynamite to divert the river while the dam was built.

    Once the dam was built they re-diverted the river back to the dam.

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